Patent application number | Description | Published |
20090066293 | VOLTAGE COMPARISON CIRCUIT - A voltage comparison circuit makes a comparison between a first voltage and a second voltage. A resistor and a constant current source are provided in series between the first voltage and the ground voltage. A comparator receives the second voltage via one input terminal (non-inverting input terminal), and the voltage at a connection node between the aforementioned resistor and the constant current source via the other input terminal (inverting terminal). The first voltage is preferably used as the power supply voltage for the comparator. | 03-12-2009 |
20090224819 | CONSTANT CURRENT CIRCUIT, AND INVERTER AND OSCILLATION CIRCUIT USING SUCH CONSTANT CURRENT CIRCUIT - A bias current source generates a constant current Iref by applying to a current-generating resistor a voltage proportional to a thermal voltage Vt. A first bipolar transistor and a second bipolar transistor are disposed in series on the path of the constant current which is generated by the bias current source. A third bipolar transistor forms a current mirror circuit with the second bipolar transistor. A fourth bipolar transistor has a base connected to the base of the first bipolar transistor and has an emitter connected to a temperature-compensating resistor. The constant current circuit outputs a sum of the collector currents of the third bipolar transistor and the fourth bipolar transistor. | 09-10-2009 |
20090259418 | CURRENT-VOLTAGE CONVERSION CIRCUIT AND POWER CONSUMPTION DETECTION CIRCUIT AND ELECTRONIC DEVICE USING THE SAME - A current-voltage conversion circuit which converts a current to be detected into a voltage, includes a detection resistor, amplifier circuit having a first operational amplifier, and an offset adjusting current source having a third resistor and a fourth resistor which are capable of trimming. The offset adjusting current source causes an offset adjustment current to flow in the offset resistor. The current value of the offset adjustment current is controlled by adjusting the resistance of the third resistor and the fourth resistor. A voltage at a node between the first transistor and the second resistor is output. | 10-15-2009 |
20100270862 | POWER MANAGEMENT CIRCUIT - An external power source is connected to an adapter input terminal (first terminal). A battery is connected to a path input terminal (second terminal). A selection circuit (a first switch, a second switch, a logic circuit compares the input voltage input from the external power supply with the battery voltage, and selects one of the two. The voltage thus selected by the selection circuit is output to an external load circuit via a system power supply terminal. A charging circuit charges the battery using the input voltage supplied from the external power supply. | 10-28-2010 |
Patent application number | Description | Published |
20100089562 | HEAT EXCHANGER - The heat exchanger includes heat transfer tubes | 04-15-2010 |
20130175160 | ELECTROLYSIS DEVICE AND HEAT-PUMP-TYPE WATER HEATER PROVIDED WITH SAME - An electrolysis device is configured such that water flowing into a container from an inlet flows from an upstream side to a downstream side in the container and flows out from an outlet. A first electrode pair is arranged on the upstream side than a second electrode pair. In the electrolysis device, in order to suppress a decrease in current density due to electrolyte concentration in the water in the second electrode pair arranged on the downstream side than the first electrode pair, the current density in the second electrode pair is adjusted. | 07-11-2013 |
20130180846 | ELECTROLYSIS DEVICE AND HEAT-PUMP-TYPE WATER HEATER PROVIDED WITH SAME - An electrolysis device includes: a container including a first circulation port functioning as one of an inlet and an outlet for water, and a second circulation port functioning as the other of the inlet and the outlet for water; a plurality of electrode pairs disposed in the container; and a power supply configured to apply a voltage to each of the electrode pairs. Each of the electrode pairs includes a pair of electrode plates. A plurality of the electrode plates are arrayed spaced apart from one another in the thickness direction of the electrode plate. In the electrolysis device, a water channel is formed by the plurality of electrode plates such that water flowing from the inlet into the container reaches the outlet after passing between the pair of electrode plates in each of the electrode pairs. | 07-18-2013 |
20140263765 | OUTDOOR UNIT FOR AIR CONDITIONING DEVICE - A spray nozzle of an outdoor unit is provided with: an air guide portion through which air flows; a water guide portion through which water flows and which causes the air flowing through the air guide portion to flow into water to form water containing a large number of bubbles; and a spray portion that is located downstream of the water guide portion in a direction of water flow and sprays, to the outside, the water containing a large number of bubbles which is formed in the water guide portion. | 09-18-2014 |
20140346036 | ELECTROLYSIS DEVICE AND HEAT PUMP HOT-WATER SUPPLY DEVICE PROVIDED WITH SAME - An electrolysis device is used in a heat pump hot-water supply device provided with a water heat exchanger for heating water and is also used for removing a scale component included in the water. The electrolysis device includes a container that has a water inlet and a water outlet, a plurality of electrodes that are arranged inside the container, and a gas discharge part that is provided at a position higher than the water outlet and that discharges a gas inside the container to the outside of the container while preventing water inside the container from being discharged to the outside of the container. | 11-27-2014 |
20140353143 | HEAT PUMP HOT-WATER SUPPLY DEVICE - A heat pump hot-water supply device includes: a tank; a refrigerant circuit having a water heat exchanger; water conduits; an electrolysis device having an electrode pair provided in a water channel upstream of the water heat exchanger, in a flow channel of water that includes the water conduits; and a control unit that executes a reversal initial operation of reversing the polarity of the electrode pair in the electrolysis device, and discharging, at a position upstream of the water heat exchanger, water that is treated in the electrolysis device during a period after polarity reversal until a predetermined condition is satisfied. | 12-04-2014 |
20150047973 | ELECTROLYSIS DEVICE AND TEMPERATURE-ADJUSTING WATER-SUPPLYING APPARATUS PROVIDED WITH SAME - An electrolysis device removes a scale component contained in water that is fed to a water heat exchanger. The electrolysis device has a container having a water inlet port and a water outlet port; a plurality of electrodes provided inside the container; and agitation means for agitating water, between adjacent electrodes, that flows from the water inlet port towards the water outlet port. | 02-19-2015 |